Synthesis and physicochemical studies of perovskite manganite La0.8Ca0.2Nn1−xCoxO3(0≤x≤0.3)

D. Turki; Zafar Khan Ghouri; Saeed Al-Meer; Khaled Elsaid; M. I. Ahmad; Ahmed Easa; M. Ellouze; E. K. Hlil

doi:10.4283/JMAG.2017.22.3.353

Synthesis and physicochemical studies of perovskite manganite La0.8Ca0.2Nn1−xCoxO3(0≤x≤0.3)

D. Turki, Zafar Khan Ghouri, Saeed Al-Meer, Khaled Elsaid, M. I. Ahmad, Ahmed Easa, M. Ellouze, E. K. Hlil

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Abstract

The physicochemical properties of La0.8Ca0.2Mn1−xCoxO3 nanopowders as a function of Co content (x) have been investigated. La0.8Ca0.2Mn1−xCoxO3 nanopowders were synthesized by sol-gel method and morphologically and structurally well characterized by Scanning electron microscopic (SEM), Infrared spectroscopic (IR) and Raman spectroscopic techniques. IR spectra shows peak at around 600 cm−1 attributed to the stretching mode of MnO6 octahedral and peak at 700 cm−1 assigned to La-Ca-O-Mn bending vibrations. Raman spectra indicate peaks at around 512 and 652 cm−1 related to the Jahn-Teller octahedral distortions. The intensity of these peaks increases with increasing Co doping. The UV-visible spectra were measured in the frequency range of 200-800 nm and two energy gaps were found at 1.63 eV and 3.294 eV for x=0, 0.1 and 0.3.

Original language	English
Pages (from-to)	353-359
Number of pages	7
Journal	Journal of Magnetics
Volume	22
Issue number	3
DOIs	https://doi.org/10.4283/JMAG.2017.22.3.353
Publication status	Published - 30 Sept 2017

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@article{e91470fdf4fb411da5934ce687242aa2,

title = "Synthesis and physicochemical studies of perovskite manganite La0.8Ca0.2Nn1−xCoxO3(0≤x≤0.3)",

abstract = "The physicochemical properties of La0.8Ca0.2Mn1−xCoxO3 nanopowders as a function of Co content (x) have been investigated. La0.8Ca0.2Mn1−xCoxO3 nanopowders were synthesized by sol-gel method and morphologically and structurally well characterized by Scanning electron microscopic (SEM), Infrared spectroscopic (IR) and Raman spectroscopic techniques. IR spectra shows peak at around 600 cm−1 attributed to the stretching mode of MnO6 octahedral and peak at 700 cm−1 assigned to La-Ca-O-Mn bending vibrations. Raman spectra indicate peaks at around 512 and 652 cm−1 related to the Jahn-Teller octahedral distortions. The intensity of these peaks increases with increasing Co doping. The UV-visible spectra were measured in the frequency range of 200-800 nm and two energy gaps were found at 1.63 eV and 3.294 eV for x=0, 0.1 and 0.3.",

author = "D. Turki and Ghouri, {Zafar Khan} and Saeed Al-Meer and Khaled Elsaid and Ahmad, {M. I.} and Ahmed Easa and M. Ellouze and Hlil, {E. K.}",

year = "2017",

month = sep,

day = "30",

doi = "10.4283/JMAG.2017.22.3.353",

language = "English",

volume = "22",

pages = "353--359",

journal = "Journal of Magnetics",

issn = "1226-1750",

publisher = "The Korean Magnestics Society",

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TY - JOUR

T1 - Synthesis and physicochemical studies of perovskite manganite La0.8Ca0.2Nn1−xCoxO3(0≤x≤0.3)

AU - Turki, D.

AU - Ghouri, Zafar Khan

AU - Al-Meer, Saeed

AU - Elsaid, Khaled

AU - Ahmad, M. I.

AU - Easa, Ahmed

AU - Ellouze, M.

AU - Hlil, E. K.

PY - 2017/9/30

Y1 - 2017/9/30

N2 - The physicochemical properties of La0.8Ca0.2Mn1−xCoxO3 nanopowders as a function of Co content (x) have been investigated. La0.8Ca0.2Mn1−xCoxO3 nanopowders were synthesized by sol-gel method and morphologically and structurally well characterized by Scanning electron microscopic (SEM), Infrared spectroscopic (IR) and Raman spectroscopic techniques. IR spectra shows peak at around 600 cm−1 attributed to the stretching mode of MnO6 octahedral and peak at 700 cm−1 assigned to La-Ca-O-Mn bending vibrations. Raman spectra indicate peaks at around 512 and 652 cm−1 related to the Jahn-Teller octahedral distortions. The intensity of these peaks increases with increasing Co doping. The UV-visible spectra were measured in the frequency range of 200-800 nm and two energy gaps were found at 1.63 eV and 3.294 eV for x=0, 0.1 and 0.3.

AB - The physicochemical properties of La0.8Ca0.2Mn1−xCoxO3 nanopowders as a function of Co content (x) have been investigated. La0.8Ca0.2Mn1−xCoxO3 nanopowders were synthesized by sol-gel method and morphologically and structurally well characterized by Scanning electron microscopic (SEM), Infrared spectroscopic (IR) and Raman spectroscopic techniques. IR spectra shows peak at around 600 cm−1 attributed to the stretching mode of MnO6 octahedral and peak at 700 cm−1 assigned to La-Ca-O-Mn bending vibrations. Raman spectra indicate peaks at around 512 and 652 cm−1 related to the Jahn-Teller octahedral distortions. The intensity of these peaks increases with increasing Co doping. The UV-visible spectra were measured in the frequency range of 200-800 nm and two energy gaps were found at 1.63 eV and 3.294 eV for x=0, 0.1 and 0.3.

UR - https://www.mendeley.com/catalogue/e35fcd2a-4a7e-3ffc-a2ff-dd4297981c26/

U2 - 10.4283/JMAG.2017.22.3.353

DO - 10.4283/JMAG.2017.22.3.353

M3 - Article

SN - 1226-1750

VL - 22

SP - 353

EP - 359

JO - Journal of Magnetics

JF - Journal of Magnetics

IS - 3

ER -

Synthesis and physicochemical studies of perovskite manganite La0.8Ca0.2Nn1−xCoxO3(0≤x≤0.3)

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